I agree, I think you are comparing apples to oranges. I have a CSMC Fox and even with 30" bbls and a 15 3/4" lop, the gun weighs only 6.5 lbs in 16 gauge and 6.7 with the 20 gauge bbls. I use it for clays sometimes, but would not want to use it for high volume clays. If I wanted a dedicated clays and waterfowl gun, the 21 would be high on my list.